Kraichnan flow in a square an example of integrable chaos
呼吸系统_英文版
The lungs take in oxygen, which all cells throughout the body need to live and carry out their normal functions. The lungs also get rid of carbon dioxide, a waste product of the body's cells. The lungs are a pair of cone-shaped organs made up of spongy, pinkish-gray tissue. They take up most of the space in the chest, or the thorax (the part of the body between the base of the neck and diaphragm). The lungs are separated from each other by the mediastinum, an area that contains the following: heart and its large vessels trachea (windpipe) esophagus thymus lymph nodes The right lung has three sections, called lobes. The left lung has two lobes.
剑桥雅思阅读10真题解析（test2）
剑桥雅思阅读10真题解析(test2)雅思阅读部分的真题资料，同学们需要进行一些细致的总结，比如说解析其实就是很重要的内容，接下来就是店铺给同学们带来的关于剑桥雅思阅读10真题解析(test2)的内容，一起来详细的分析一下吧，希望对你们的备考有所帮助。
剑桥雅思阅读10原文(test2)READING PASSAGE 1You should spend about 20 minutes on Questions 1-13, which are based on Reading Passage 1 on the following pages.Questions 1-7Reading Passage 1 has seven paragraphs, A-G.Choose the correct heading for each paragraph from the list of headings below.Write the correct number，i-ix，in boxes 1-7 on your answer sheetList of Headingsi The search for the reasons for an increase in populationii Industrialisation and the fear of unemploymentiii The development of cities in Japaniv The time and place of the Industrial Revolutionv The cases of Holland, France and Chinavi Changes in drinking habits in Britainvii Two keys to Britain’s industrial revolutionviii Conditions required for industrialisationix Comparisons with Japan lead to the answer1 Paragraph A2 Paragraph B3 Paragraph C4 Paragraph D5 Paragraph E6 Paragraph F7 Paragraph GTea and the Industrial RevolutionA Cambridge professor says that a change in drinking babits was the reason for the Industrial Revolution in Britain. Anjana Abuja reportsA Alan Macfarlane, professor of anthropological science at King’s College, Cambridge, has, like other historians, spent decades wrestling with the enigma of the Industrial Revolution. Why did this particular Big Bang — the world-changing birth of industry — happen in Britain? And why did it strike at the end of the 18th century?B Macfarlane compares the puzzle to a combination lock. ‘There are about 20 different factors and all of them need to be present before the revolution can happen,’ he says. For industry to take off, there needs to be the technology and power to drive factories, large urban populations to provide cheap labour, easy transport to move goods around, an affluent middle-class willing to buy mass-produced objects, a market-driven economy and a political system that allows this to happen. While this was the case for England, other nations, such as Japan, the Netherlands and France also met some of these criteria but were not industrialising. ‘All these factors must have been necessary but not sufficient to c ause the revolution,’ says Macfarlane. ‘After all, Holland had everything except coal while China also had many of these factors. Most historians are convinced there are one or two missing factors that you need to open the lock.’C The missing factors, he proposes, are to be found in almost even kitchen curpboard. Tea and beer, two of the nation’sfavourite drinks, fuelled the revolution. The antiseptic properties of tannin, the active ingredient in tea, and of hops in beer — plus the fact that both are made with boiled water — allowed urban communities to flourish at close quarters without succumbing to water-borne diseases such as dysentery. The theory sounds eccentric but once he starts to explain the detective work that went into his deduction, the scepticism gives way to wary admiration. Macfarlane’s case has been strengthened by support from notable quarters — Roy Porter, the distinguished medical historian, recently wrote a favourable appraisal of his research.D Macfarlane had wondered for a long time how the Industrial Revolution came about. Historians had alighted on one interesting factor around the mid-18th century that required explanation. Between about 1650 and 1740，the population in Britain was static. But then there was a burst in population growth. Macfarlane says: ‘The infant mortality rate halved in the space of 20 years, and this happened in both rural areas and cities, and across all classes. People suggested four possible causes. Was there a sudden change in the viruses and bacteria around? Unlikely. Was there a revolution in medical science? But this was a century before Lister’s revolution_ Was there a change in environmental conditions? There were improvements in agriculture that wiped out malaria, but these were small gains. Sanitation did not become widespread until the 19th century. The only option left is food. But the height and weight statistics show a decline. So the food must have got worse. Efforts to explain this sudden reduction in child deaths appeared to draw a blank.’E This population burst seemed to happen at just the right time to provide labour for the Industrial Revolution. ‘When youstart moving towards an industrial revolution, it is economically efficient to have people living close together,’ says Macfarlane. ‘But then you get disease, particularly from human waste.’ Some digging around in historical records revealed that there was a change in the incidence of water-borne disease at that time, especially dysentery. Macfarlane deduced that whatever the British were drinking must have been important in regulating disease. He says, ‘We drank beer. For a long time, the English were protected by the strong antibacterial agent in hops, which were added to help preserve the beer. But in the late 17th century a tax was introduced on malt, the basic ingredient of beer. The poor turned to water and gin and in the 1720s the mortality rate began to rise again. Then it suddenly dropped again. What caused this?’F Macfarlane looked to Japan, which was also developing large cities about the same time, and also had no sanitation. Water-borne diseases had a much looser grip on the Japanese population than those in Britain. Could it be the prevalence of tea in their culture? Macfarlane then noted that the history of tea in Britain provided an extraordinary coincidence of dates. Tea was relatively expensive until Britain started a direct clipper trade with China in the early 18th century. By the 1740s, about the time that infant mortality was dipping, the drink was common. Macfarlane guessed that the fact that water had to be boiled, together with the stomach-purifying properties of tea meant that the breast milk provided by mothers was healthier than it had ever been. No other European nation sipped tea like the British, which, by Macfarla ne’s logic, pushed these other countries out of contention for the revolution.G But, if tea is a factor in the combination lock, why didn’tJapan forge ahead in a tea-soaked industrial revolution of its own? Macfarlane notes that even though 17th-century Japan had large cities, high literacy rates, even a futures market, it had turned its back on the essence of any work-based revolution by giving up labour-saving devices such as animals, afraid that they would put people out of work. So, the nation that we now think of as one of the most technologically advanced entered the 19th century having ‘abandoned the wheel’._oseph Lister was the first doctor to use antiseptic techniques during surgical operations to prevent infections.Questions 8-13Do the following statements agree with the information given in Reading Passage 1?In boxes 8-13 on your answer sheet, writeTRUE if the statement agrees with the informationFALSE if the statement contradicts the informationNOT GIVEN if there is no information on this8 China’s transport system was not suitable for industry in the 18th century.9 Tea and beer both helped to prevent dysentery in Britain.10 Roy Porter disagrees with Professor Macfarlane’s findings.11 After 1740，there was a reduction in population in Britain.12 People in Britain used to make beer at home.13 The tax on malt indirectly caused a rise in the death rate.READING PASSAGE 2You should spend about 20 minutes on Questions 14-26, which are based on Reading Passage 2 below.Gifted children and learningA Internationally, ‘giftedness’ is most frequentlydetermined by a score on a general intelligence test, known as an IQ test, which is above a chosen cutoff point, usually at around the top 2-5%. Children’s educational environment contributes to the IQ score and the way intelligence is used. For example, a very close positive relationship was found when children’s IQ scores were compared with their home educational provision (Freeman, 2010). The higher the children’s IQ scores, especially over IQ 130, the better the quality of their educational backup, measured in terms of reported verbal interactions with parents, number of books and activities in their home etc. Because IQ tests are decidedly influenced by what the child has learned, they are to some extent measures of current achievement based on age-norms; that is, how well the children have learned to manipulate their knowledge and know-how within the terms of the test. The vocabulary aspect, for example, is dependent on having heard those words. But IQ tests can neither identify the processes of learning and thinking nor predict creativity.B Excellence does not emerge without appropriate help. To reach an exceptionally high standard in any area very able children need the means to learn, which includes material to work with and focused challenging tuition — and the encouragement to follow their dream. There appears to be a qualitative difference in the way the intellectually highly able think, compared with more average-ability or older pupils, for whom external regulation by the teacher often compensates for lack of internal regulation. To be at their most effective in their self-regulation, all children can be helped to identify their own ways of learning —metacognition —which will include strategies of planning, monitoring, evaluation, and choice of what to learn. Emotional awareness is also part of metacognition, so children should behelped to be aware of their feelings around the area to be learned, feelings of curiosity or confidence, for example.C High achievers have been found to use self-regulatory learning strategies more often and more effectively than lower achievers, and are better able to transfer these strategies to deal with unfamiliar tasks. This happens to such a high degree in some children that they appear to be demonstrating talent in particular areas. Overviewing research on the thinking process of highly able children, (Shore and Kanevsky, 1993) put the instructor’s problem succinctly: ‘If they [the gifted] merely think mo re quickly, then we need only teach more quickly. If they merely make fewer errors, then we can shorten the practice’. But of course, this is not entirely the case; adjustments have to be made in methods of learning and teaching, to take account of the many ways individuals think.D Yet in order to learn by themselves, the gifted do need some support from their teachers. Conversely, teachers who have a tendency to ‘overdirect’ can diminish their gifted pupils’ learning autonomy. Although ‘spoon-feeding’ can produce extremely high examination results, these are not always followed by equally impressive life successes. Too much dependence on the teachers risks loss of autonomy and motivation to discover. However, when teachers help pupils to reflect on their own learning and thinking activities, they increase their pupils’ self-regulation. For a young child, it may be just the simple question ‘What have you learned today?’ which helps them to recognise what they are doing. Given that a fundamental goal of education is to transfer the control of learning from teachers to pupils, improving pupils’ learning to learn techniques should be a major outcome of the school experience,especially for the highly competent. There are quite a number of new methods which can help, such as child-initiated learning, ability-peer tutoring, etc. Such practices have been found to be particularly useful for bright children from deprived areas.E But scientific progress is not all theoretical, knowledge is a so vital to outstanding performance: individuals who know a great deal about a specific domain will achieve at a higher level than those who do not (Elshout, 1995). Research with creative scientists by Simonton (1988) brought him to the conclusion that above a certain high level, characteristics such as independence seemed to contribute more to reaching the highest levels of expertise than intellectual skills, due to the great demands of effort and time needed for learning and practice. Creativity in all forms can be seen as expertise mixed with a high level of motivation (Weisberg, 1993).F To sum up, learning is affected by emotions of both the individual and significant others. Positive emotions facilitate the creative aspects of learning and negative emotions inhibit it. Fear, for example, can limit the development of curiosity, which is a strong force in scientific advance, because it motivates problem-solving behaviour. In Boekaerts’ (1991) review of emotion the learning of very high IQ and highly achieving children, she found emotional forces in harness. They were not only curious, but often had a strong desire to control their environment, improve their learning efficiency and increase their own learning resources.Questions 14-17Reading Passage 2 has six paragraphs, A-F.Which paragraph contains the following information?Write the correct letter, A-F, in boxes 14-17 on your answersheet.NB You may use any letter more than once.14 a reference to the influence of the domestic background on the gifted child15 reference to what can be lost if learners are given too much guidance16 a reference to the damaging effects of anxiety17 examples of classroom techniques which favour socially-disadvantaged childrenQuestions 18-22Look at the following statements (Questions 18-22) and the list of people below.Match each statement with the correct person or people, A-E.Write the correct letter, A-E, in boxes 18-22 on your answer sheet.18 Less time can be spent on exercises with gifted pupils who produce accurate work.19 Self-reliance is a valuable tool that helps gifted students reach their goals.20 Gifted children know how to channel their feelings to assist their learning.21 The very gifted child benefits from appropriate support from close relatives.22 Really successful students have learnt a considerable amount about their subject.List of PeopleA FreemanB Shore and KanevskyC ElshoutD SimontonE BoekaertsQuestions 23-26Complete the sentences below.Choose NO MORE THAN TWO WORDS from the passage for each answer.Write your answers in boxes 23-26 on your answer sheet23 One study found a strong connection between children’s IQ and the availability of andat home.24 Children of average ability seem to need more direction from teachers because they do not have25 Metacognition involves children understanding their own learning strategies, as well as developing26 Teachers who rely on what is known as often produce sets of impressive grades in class tests.READING PASSAGE 3You should spend about 20 minutes on Questions 27-40, which are based on Reading Passage 3 below.Museums of fine art and their publicThe fact that people go to the Louvre museum in Paris to see the original painting Mona Lisa when they can see a reproduction anywhere leads us to question some assumptions about the role of museums of fine art in today’s worldOne of the most famous works of art in the world is Leonardo da Vinci’s Mona Lisa. Nearly everyone who goes to see the original will already be familiar with it from reproductions, but they accept that fine art is more rewardingly viewed in its original form.However, if Mona Lisa was a famous novel, few people wouldbother to go to a museum to read the writer’s actual manuscript rather than a printed reproduction. This might be explained by the fact that the novel has evolved precisely because of technological developments that made it possible to print out huge numbers of texts, whereas oil paintings have always been produced as unique objects. In addition, it could be argued that the practice of interpre ting or ‘reading’ each medium follows different conventions. With novels, the reader attends mainly to the meaning of words rather than the way they are printed on the page, whereas the ‘reader’ of a painting must attend just as closely to the material form of marks and shapes in the picture as to any ideas they may signify.Yet it has always been possible to make very accurate facsimiles of pretty well any fine art work. The seven surviving versions of Mona Lisa bear witness to the fact that in the 16th century, artists seemed perfectly content to assign the reproduction of their creations to their workshop apprentices as regular ‘bread and butter’ work. And today the task of reproducing pictures is incomparably more simple and reliable, with reprographic techniques that allow the production of high-quality prints made exactly to the original scale, with faithful colour values, and even with duplication of the surface relief of the painting.But despite an implicit recognition that the spread of good reproductions can be culturally valuable, museums continue to promote the special status of original work.Unfortunately, this seems to place severe limitations on the kind of experience offered to visitors.One limitation is related to the way the museum presents its exhibits. As repositories of unique historical objects, art museumsare often called ‘treasure houses’. We are reminded of this even before we view a collection by the presence of security guards, attendants, ropes and display cases to keep us away from the exhibits. In many cases, the architectural style of the building further reinforces that notion. In addition, a major collection like that of London’s National Gallery is housed in numerous rooms, each with dozens of works, any one of which is likely to be worth more than all the average visitor possesses. In a society that judges the personal status of the individual so much by their material worth, it is therefore difficult not to be impressed by one’s own relative ‘worthlessness’ in such a n environment.Furthermore, consideration of the ‘value’ of the original work in its treasure house setting impresses upon the viewer that, since these works were originally produced, they have been assigned a huge monetary value by some person or institution more powerful than themselves. Evidently, nothing the viewer thinks about the work is going to alter that value, and so today’s viewer is deterred from trying to extend that spontaneous, immediate, self-reliant kind of reading which would originally have met the work.The visitor may then be struck by the strangeness of seeing such diverse paintings, drawings and sculptures brought together in an environment for which they were not originally created. This ‘displacement effect’ is further heightened by the sheer volume of exhibits. In the case of a major collection, there are probably more works on display than we could realistically view in weeks or even months.This is particularly distressing because time seems to be a vital factor in the appreciation of all art forms. A fundamental difference between paintings and other art forms is that there isno prescribed time over which a painting is viewed. By contrast, the audience encounters an opera or a play over a specific time, which is the duration of the performance. Similarly, novels and poems are read in a prescribed temporal sequence, whereas a picture has no clear place at which to start viewing, or at which to finish. Thus art works themselves encourage us to view them superficially, without appreciating the richness of detail and labour that is involved.Consequently, the dominant critical approach becomes that of the art historian, a specialised academic approach devoted to ‘discovering the meaning’ of art within the cultural context of its time. T his is in perfect harmony with the museum’s function, since the approach is dedicated to seeking out and conserving ‘authentic’, ‘original’ readings of the exhibits. Again, this seems to put paid to that spontaneous, participatory criticism which can be found in abundance in criticism of classic works of literature, but is absent from most art history.The displays of art museums serve as a warning of what critical practices can emerge when spontaneous criticism is suppressed. The museum public, like any other audience, experience art more rewardingly when given the confidence to express their views. If appropriate works of fine art could be rendered permanently accessible to the public by means of high-fidelity reproductions, as literature and music already are, the public may feel somewhat less in awe of them. Unfortunately, that may be too much to ask from those who seek to maintain and control the art establishment.Questions 27-31Complete the summary using the list of words, A-L, below.Write the correct letter, A-L, in boxes 27-31 on your answersheet.The value attached to original works of artPeople go to art museums because they accept the value of seeing an original work of art. But they do not go to museums to read original manuscripts of novels, perhaps because the availability of novels has depended on 27 for so long, and also because with novels, the 28 are the most important thing.However, in historical times artists such as Leonardo were happy to instruct 29 to produce copies of their work and these days new methods of reproduction allow excellent replication of surface relief features as well as colour and 30It is regrettable that museums still promote the superiority of original works of art, since this may not be in the interests of the 31A institutionB mass productionC mechanical processesD publicE paintsF artistG size H underlying ideas I basic technologyJ readers K picture frames L assistantsQuestions 32-35Choose the correct letter, A, B, C or D.Write the correct letter in boxes 32-35 on your answer sheet32 The writer mentions London’s National Gallery to illustrateA the undesirable cost to a nation of maintaining a huge collection of art.B the conflict that may arise in society between financial and artistic values.C the n egative effect a museum can have on visitors’ opinions of themselves.D the need to put individual well-being above large-scaleartistic schemes.33 The writer says that today, viewers may be unwilling to criticise a work becauseA they lack the knowledge needed to support an opinion.B they fear it may have financial implications.C they have no real concept of the work’s value.D they feel their personal reaction is of no significance.34 According to the writer, the ‘displacement effect’ on the visitor is caused byA the variety of works on display and the way they are arranged.B the impossibility of viewing particular works of art over a long period.C the similar nature of the paintings and the lack of great works.D the inappropriate nature of the individual works selected for exhibition.35 The writer says that unlike other forms of art, a painting does notA involve direct contact with an audience.B require a specific location for a performance.C need the involvement of other professionals.D have a specific beginning or end.Questions 36-42Do the following statements agree with the views of the writer in Reading Passage 3?In boxes 36-40 on your answer sheet, writeYES if the statement agrees with the views of the writerNO if the statement contradicts the views of the writerNOT GIVEN if it is impossible to say what the writer thinksabout this36 Art history should focus on discovering the meaning of art using a range of media.37 The approach of art historians conflicts with that of art museums.38 People should be encouraged to give their opinions openly on works of art.39 Reproductions of fine art should only be sold to the public if they are of high quality.40 In the future, those with power are likely to encourage more people to enjoy art.剑桥雅思阅读10原文参考译文(test2)Passage 1参考译文：茶与工业革命一个剑桥教授称英国工业革命的导火索是饮水习性的改变。
仿照车前草的发明英语作文
仿照车前草的发明英语作文英文回答：The invention of Plantain, a common weed found in many parts of the world, has revolutionized the medical industry. This unassuming plant, often considered a nuisance, hasbeen discovered to possess remarkable healing properties, making it a valuable addition to the world of natural medicine.Plantain, also known as Plantago major, is a broadleaf plant that has been used for centuries in traditional medicine. Its healing abilities have been documented in ancient texts from various cultures, including the Egyptians, Greeks, and Chinese. The plant contains a wide range of beneficial compounds, including flavonoids, tannins, and mucilage, which contribute to its therapeutic effects.One of the most well-known uses of Plantain is forwound healing. The plant's leaves contain allantoin, a compound that promotes cell regeneration and tissue repair. Additionally, Plantain's antibacterial and antifungal properties help prevent infection, making it an effective natural remedy for cuts, burns, and other skin ailments.Plantain is also effective in treating digestive issues. Its mucilage acts as a soothing agent, coating thedigestive tract and reducing inflammation. This makes Plantain a useful remedy for conditions such as gastritis, ulcers, and diarrhea. The plant's laxative properties can also provide relief from constipation.In addition to its healing properties, Plantain is also a valuable source of nutrients. The leaves are rich in vitamins A, C, and K, as well as minerals such as iron, calcium, and magnesium. This makes Plantain a healthy addition to any diet, contributing to overall well-being.The invention of Plantain as a medicinal plant has hada significant impact on the healthcare landscape. This humble weed has proven to be a potent natural healer,offering a wide range of therapeutic benefits. As more research is conducted on Plantain, its potential as a natural remedy continues to expand, making it an exciting prospect for the future of medicine.中文回答：车前草的发明。
乔戈里峰英语作文
乔戈里峰英语作文K2, also known as the Dhaulagiri, is a majesticmountain that stands tall in the Himalayas. It's not just a peak; it's a symbol of nature's grandeur and humanity's never-ending quest for adventure. Standing at over 8,000 meters, it challenges even the most experienced climbers.To stand at its base and gaze up at its snow-covered slopes is an experience that words can't quite describe.The air is thin, the sky seems closer, and the silence is broken only by the occasional cry of a bird or the rustleof the wind. It's a place where you can feel the earth's pulse beneath your feet.Climbing K2 is not for the faint of heart. It requires not just physical strength but also mental toughness and a willingness to face the unknown. The route is treacherous, with steep cliffs and narrow ledges that test even the most skilled climbers. But for those who make it to the top, the view is worth every ounce of sweat and every moment of fear.And then there's the descent. It's often said that getting down is harder than getting up, and that's certainly true for K2. The mind games are relentless, and every step feels heavier than the last. But with careful。
西安“PEP”2024年11版小学O卷英语第三单元全练全测(含答案)
西安“PEP”2024年11版小学英语第三单元全练全测(含答案)考试时间：100分钟（总分:120）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. 填空题：He is a soldier, ______ (他是一名士兵), who protects our country.2. 填空题：The cake is _______ (在桌子上)。
3. 选择题：Which sport uses a racket and a shuttlecock?A. TennisB. BadmintonC. SquashD. Table Tennis答案:B4. 选择题：What is the color of an orange?A. GreenB. YellowC. OrangeD. Purple答案:C5. 听力题：The chemical equation for respiration includes glucose and _____.6. 选择题：What is the capital of Sweden?A. StockholmB. OsloC. CopenhagenD. Helsinki答案:A7. 听力题：The chemical properties of a substance depend on its _____.8. 填空题:I enjoy playing ________ with my family.9. 听力题：The Earth revolves around the ______.10. 填空题：The _____ (植物整合) fosters harmony with nature.11. 填空题：A goldfish can recognize its ______ (主人).12. 选择题：What is the name of the famous garden in Paris?A. Central ParkB. Jardin des TuileriesC. Kew GardensD. Brooklyn Botanic Garden答案：B13. 填空题：The painter, ______ (画家), uses bright colors in her artwork.14. 填空题：My mom is a _______ (职业). 她每天都 _______ (动词).15. 听力题：His favorite book is a ________.16. 填空题：My sister enjoys __________ (参与) in extracurricular activities.17. 选择题：What do we call a place where animals are kept for public viewing?A. AquariumB. ZooC. FarmD. CircusWhat do we call the study of the Earth and its features?A. GeographyB. GeologyC. EcologyD. History19. 听力填空题：I believe that practicing gratitude helps us focus on the __________.20. 选择题：What is the name of the famous clock tower in London?A. Big BenB. Tower of LondonC. London EyeD. Buckingham Palace答案: A21. 填空题：The __________ is known for its diverse ecosystems. (热带地区)22. 选择题：What is the opposite of "happy"?A. SadB. AngryC. JoyfulD. Excited答案: A23. 选择题：What is the name of the game where you shoot hoops?A. SoccerB. BasketballC. BaseballD. Tennis答案:B24. 选择题：What is the main ingredient in bread?A. SugarB. FlourC. SaltD. Milk答案:BThe ________ (人工栽培) supports agriculture.26. 听力题：A solution that can conduct electricity is called an ______ solution.27. 选择题：What do you call the person who writes books?A. PainterB. AuthorC. SculptorD. Musician答案:B28. 听力题：A chemical compound can be ionic or ______.29. 听力题：The ______ teaches us about environmental science.30. 填空题：My ________ (玩具名称) is made of wood.31. 填空题：Plants can be used for decoration and ______ (美化).32. 填空题：__________ (化肥) provide essential nutrients for plants.33. 听力题：The _____ (teacher/student) is happy.34. 填空题：My _____ (小鸟) sings in the morning.35. 听力题：My aunt loves to cook ____ (southern cuisine).36. 选择题：What is the longest river in the world?A. AmazonB. NileC. MississippiD. Yangtze答案:BI love visiting the ______ (动物园) to see all the different animals.38. 填空题：The farmer, ______ (农民), grows vegetables and fruits.39. ration of Independence was signed in _______. (1776年) 填空题：The Decl40. 听力题：She is wearing a lovely ___. (dress)41. 听力题：A covalent bond is formed when two atoms ________ electrons.42. 听力题：A ______ is a systematic review of literature.43. 填空题：The __________ is a large desert found in North Africa. (撒哈拉沙漠)44. 选择题：What is the name of the famous monument in Washington, D. C. ?A. Lincoln MemorialB. Washington MonumentC. Jefferson MemorialD. White House45. 选择题：What do you call a person who repairs cars?A. MechanicB. ElectricianC. PlumberD. Carpenter答案: A46. 听力题：The cookies are ___. (baking)47. 听力题：The _____ is the study of the universe beyond Earth.48. 填空题：The capital of the Central African Republic is ________ (班吉).What animal barks?a. Catb. Dogc. Cowd. Sheep答案:b50. 听力题：The boiling point of water is ______ degrees Celsius.51. 选择题：What do we call the process of plants making their own food?A. PhotosynthesisB. DigestionC. RespirationD. Fermentation52. 听力题：An ecosystem is a community of living organisms interacting with their ______ environment.53. 填空题：My favorite type of music to listen to is ______.54. ts are prized for their ornamental ______, making them popular in landscaping. (某些植物因其观赏性而备受珍视，成为景观设计中的热门选择。
小学下册第十五次英语第4单元自测题[含答案]
![小学下册第十五次英语第4单元自测题[含答案]](https://img.taocdn.com/s3/m/8f04505542323968011ca300a6c30c225801f006.png)
小学下册英语第4单元自测题[含答案]英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.The _______ (The Industrial Revolution) transformed economies and societies.2.The __________ is refreshing after a hot day. (凉爽的晚风)3.What is the capital of Venezuela?A. CaracasB. MaracaiboC. ValenciaD. Barquisimeto答案:A4. A meteor shower occurs when many meteoroids enter the ______.5.What do we call the movement of the Earth around the sun?A. RotationB. RevolutionC. OrbitD. Cycle答案:B6.Oxygen is essential for __________ to occur.7.Cats can see well in ______ light.8.The __________ is warm and sunny today. (天气)9.We have a ______ (快乐的) time at family reunions.10.I love to share my ideas with my _______ (同学). It encourages collaboration and _______ (创新).11.The chemical reaction that occurs in batteries is an example of a _____ reaction.12.The __________ (沙丘) are shifting due to the wind.13.What do we call the act of playing tricks on someone?A. JokeB. PrankC. HoaxD. Ruse答案:B14.The process of extracting oil from plants is called _______.15.I can ________ my homework alone.16.Which part of the plant is responsible for photosynthesis?A. RootsB. StemC. LeavesD. Flowers答案:C Leaves17.What is the main ingredient in sushi?A. BeefB. ChickenC. FishD. Pork答案:C18.What is the capital of Croatia?A. ZagrebB. SplitC. RijekaD. Dubrovnik19.The process of combining elements to form compounds is called ______.20.Brazil is famous for its __________. (亚马逊热带雨林)21.The ________ is a cheerful little animal.22.My dad is very ________.23.What do we call the act of finding something out?A. DiscoveryB. ExplorationC. InvestigationD. Research答案:A24.We will _______ (attend) the school play.25.Planetary atmospheres can vary greatly in ______.26.What is the favorite food of a koala?A. Eucalyptus leavesB. BambooC. FruitsD. Nuts答案:A27.The tortoise is very _______ (慢).28.I have a ___ (toy/gift) for you.29.We should keep ______ (环境清洁) for plants to thrive.30.My cousin loves to __________. (唱歌)31.They are playing ________ (游戏) in the park.32.The ______ is famous for her activism.33.What do we call a large natural stream of water?A. RiverB. CreekC. StreamD. Brook答案:A River34.The __________ (历史的追溯) provides context.35.The _____ (field) is covered with grass and wildflowers.36.I enjoy watching ______ (舞台剧) because they tell interesting stories. It’s a fun experience.37.My dog loves to _______ (追逐) squirrels.38.The Earth's climate is affected by its ______ and position in space.39.My dog loves to fetch a ______ (球).40. A _____ (园林) can be designed for relaxation.41.I enjoy playing with my toy ________ (玩具名称) in the pool.42.The _____ (city/country) is big.43.What do you wear on your feet?A. HatB. ShoesC. GlovesD. Belt答案:B44.What is the color of grass?A. BlueB. GreenC. YellowD. Red答案:B45.The toucan is known for its bright ________________ (颜色).46.What is the name of the famous ancient city in Mexico?A. Machu PicchuB. TeotihuacanC. Chichen ItzaD. Tulum答案:C47.I can discover new interests with my ________ (玩具类型).48.What do we celebrate on the 4th of July in the USA?A. ThanksgivingB. Independence DayC. ChristmasD. Halloween49.What is the chemical formula for carbon dioxide?A. COB. CO2C. O2D. CH4答案:B CO250.The quokka is one of the ______ (最快乐的) animals.51.What is the name of the famous mountain in Africa?A. Mount EverestB. Mount KilimanjaroC. Mount McKinleyD. Mount Fuji答案:B52. A __________ is a mixture that cannot be separated by physical means.53.We will _______ (go) to the fair next week.54.The clock _____ ticks loudly. (always)55.What is the name of the famous scientist known for his work on genetics?A. Gregor MendelB. Charles DarwinC. Louis PasteurD. Albert Einstein答案:A56. A ______ is a geological formation that can house minerals.57.n Tea Party was a protest against __________ (税收). The Bost58.How many players are on a volleyball team?A. SixB. SevenC. EightD. Nine59.The ______ shares interesting facts about nature.60.We celebrate ________ (New Year) with fireworks.61.An owl is awake at ______ (夜).62.What do we call a person who studies rocks?A. BiologistB. ChemistC. GeologistD. Physicist63.The capital of Iceland is __________.64.My grandmother makes the best __________ (食物) in the world.65.What do we call the act of keeping something safe from harm?A. ProtectionB. PreservationC. ConservationD. Safeguarding答案:A66.What is 4 x 3?A. 10B. 11C. 12D. 13答案:C67.The bookstore has many ________.68.In art class, we use ______ (颜料) to create beautiful pictures. I love to paint ______ (风景) and animals.69.The _____ (花瓣) are often colorful and bright.70.The process of carbon dating measures the decay of _____.71.We will go ______ in the evening. (walking)72.What is the capital of Italy?A. ParisB. RomeC. MadridD. Athens73.I have a pet ________.74.My ________ (玩具名称) is very big and fluffy.75.What do we use to read?A. BookB. SpoonC. PlateD. Cup答案:A76.She has a _______ of books.77.How many legs does a spider have?A. SixB. EightC. TenD. Twelve78.We are _____ (going/come) to the party.79.The stars are ___ (beautiful).80.What is the value of 5 × 5?A. 20B. 25C. 30D. 35答案:B81.The symbol for strontium is _____.82. A chemical reaction that produces a solid is called a ______ reaction.83.My ______ is a great storyteller.84.There are five ___ on the tree. (birds)85.What do you call a baby dog?A. KittenB. PuppyC. CubD. Calf答案:B86.What do we call a celebration of someone's birth?A. AnniversaryB. BirthdayC. HolidayD. Festival87.Plants can be studied for ______ (科学研究).88.The ancient Aztecs practiced ________ as part of their religion.89.I like to paint pictures of ______ (风景) and animals. Art is a wonderful form of expression.90.The kids are _______ (running) in the playground.91.The tree is _______.92.The chemical symbol for indium is _____.93.What is the opposite of 'easy'?A. SimpleB. HardC. DifficultD. Challenging94. A ________ grows tall and strong in the forest.95.What is the capital of South Korea?A. SeoulB. BusanC. IncheonD. Jeju96.What is the name of the famous American singer known for "Proud Mary"?A. Tina TurnerB. Aretha FranklinC. Diana RossD. Whitney Houston答案:A97.The __________ can reveal the history of geological processes in a region.98.I brush my teeth _______ (every day/once a week).99.Chemical safety is important when handling ________ substances.100.My friend is my best _______ who listens to my thoughts and feelings.。
小学上册A卷英语第5单元测验卷
小学上册英语第5单元测验卷英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.The turtle can live for many ______ (年).2.I like to drink ______ (果汁) in the morning with my breakfast.3.The bird sings a beautiful _______ (鸟儿唱着美丽的_______).4.The ______ (老虎) has powerful jaws and sharp claws.5.My mom makes _____ (晚餐) for us.6._____ (沙漠) plants have adapted to survive with little water.7.How many sides does a square have?A. 2B. 3C. 4D. 58.The gas that is produced when vinegar is heated is ______.9.How many zeros are in one hundred?A. 1B. 2C. 3D. 4答案:B10. A chemical reaction can be represented using a _____ (chemical equation).11.My dad waters the ________ every morning.12.My family likes to go ______ together. (我的家人喜欢一起去______。
)13.The cat is ___ (chasing/hiding) from the dog.14.The _____ (music/dance) is fun.15.I see frost on the ______ (草地) in the morning.16.The _____ can vary in brightness and color.17.The _____ (植物生长) relies on sunlight and water.18.I love _____ (chocolate/vanilla) ice cream.19. A chemical change often involves a change in _____ or energy.20.His favorite movie is a ________.21.What do you call the study of animals?A. ZoologyB. BotanyC. BiologyD. Ecology22.It is _____ (cold) today.23.My teacher encouraged us to create our own ________ (漫画). I drew a funny________ (角色).24.What do frogs eat?A. MeatB. PlantsC. InsectsD. FruitsC Insects25.What do we call the process of making a new product?A. ProductionB. ManufacturingC. CreationD. All of the aboveD All of the above26.I saw a ________ flying above my house.27.The __________ (历史的价值) is timeless.28.The chemical symbol for lithium is _____.29.Insects can help in __________ (传粉).30.My _____ (魔方) is difficult to solve.31.What is the name of the famous poet known for his sonnets?A. Robert FrostB. William WordsworthC. William ShakespeareD. John KeatsC32.What is the capital of Canada?A. OttawaB. TorontoC. VancouverD. Montreal33.ts are ______ (有毒) and should be handled with care. Some pla34.What do we call the practice of growing plants without soil?A. HydroponicsB. AeroponicsC. AquaponicsD. Soil farmingA35.The ancient Greeks engaged in ________ to honor their warriors.36.What is the primary color of the sun?A. BlueB. YellowC. PurpleD. Green37.The wolf is a social _________ (动物).38.The __________ is known for its unique natural features. (大峡谷)39.What is a lunar eclipse?A. When the sun covers the moonB. When the earth covers the moonC. When the moon covers the earthD. When stars align40.We are going to ________ a concert.41.What is the name of the device used to take pictures?A. CameraB. PhoneC. ComputerD. TabletA42.I like to bake ______ on weekends.43.How many players are on a polo team?A. 4B. 5C. 6D. 744.What is the name of the instrument used to see distant objects?A. MicroscopeB. BinocularsC. TelescopeD. Magnifying glassC45.What is the capital of Turkey?A. IstanbulB. AnkaraC. IzmirD. BursaB46.I think learning a new language is fun. I’m currently learning __________.47.The _____ (细胞) of plants are specialized for different functions.48.The ______ (香味) of herbs can enhance meals.49.How many players are on a basketball team?A. 5B. 6C. 7D. 8答案:A50.The chemical equation for respiration includes glucose and ______.51. A _____ (章鱼) can change its shape to fit through tight spaces.52.Which continent is known as the "Dark Continent"?A. AsiaB. AfricaC. EuropeD. AustraliaB53.The chemical formula for phosphoric acid is _______.54.What is the capital of the Philippines?A. CebuB. ManilaC. DavaoD. Makati55.The bee gathers nectar from _______.56.I enjoy _______ (做手工) projects.57.The main gas present in the Earth's atmosphere is _______.58.My dad is a __________ (财务顾问).59.The capital of Nepal is _____.60.What is the name of the first person to walk on the moon?A. Buzz AldrinB. Neil ArmstrongC. John GlennD. Yuri GagarinB61.My aunt loves __________ (运动).62.The _____ (火烈鸟) is often found in warm climates.63.The term "plate tectonics" refers to the movement of large plates that make up the Earth’s ______.64.What is the capital city of Armenia?A. YerevanB. GyumriC. VanadzorD. Vagharshapat65.What is the main body of water called that covers most of the Earth?A. OceanB. RiverC. LakeD. PondA66.I can ______ (提高) my understanding of concepts.67.What is the capital of Nigeria?A. LagosB. AbujaC. KanoD. Port HarcourtB68.What do we call the chemical reaction that gives us energy?A. CombustionB. RespirationC. FermentationD. OxidationB69.What is the capital of Kazakhstan?A. AlmatyB. Nur-SultanC. ShymkentD. AktobeB70.What is the largest land animal?A. GiraffeB. ElephantC. HippopotamusD. RhinoB71.I can build a _________ (玩具飞机) that really flies.72. f Enlightenment promoted ideas of ________ (自由). The Age73.Which of these is a type of weather?A. HappyB. RainyC. TallD. SweetB74.I like to watch the clouds ______ (移动).75.The ancient Greeks made significant advancements in ________ (医学).76.The _____ (车) is parked outside.77.The puppy is very ________.78.My cat loves to _______ (攀爬) onto shelves.79.The rabbit hops around the ______ (花园). It is searching for ______ (食物).80.What do we celebrate on Christmas?A. New YearB. BirthdayC. HolidayD. Jesus' birthD81.What do we use to cut paper?A. TapeB. GlueC. ScissorsD. Rulerpounds can only be separated into their elements through a ________ reaction.83. A chemical reaction can produce _____ as a byproduct.84.The first successful organ transplant was performed in ________ (20世纪).85.An endothermic reaction absorbs _______.86.The movie was very ________ (有趣).87.Which number is larger: 10 or 5?A. 10B. 5C. They are equalD. NoneA88.The _______ of a tree is important for wildlife.89.What do we call a large body of ice that moves slowly down a mountain?A. GlacierB. Ice CapC. IcebergD. SnowfieldA90.What is the main food of pandas?A. BambooB. MeatC. FishD. InsectsA91.The _____ (森林) is home to diverse plant life.92. A _______ is a device that measures temperature.93.The __________ (火灾) affected the forest area.anic chemistry is the study of carbon-containing _____.95.The _____ (狐狸) is very clever and resourceful.96.Water turns into ______ (steam) when heated.97.The __________ (历史的留下) contributes to legacy.98.Which animal is known for its ability to fly?A. FishB. BirdC. CatD. DogB99.What do we call the area of land that is below sea level?A. BasinB. DepressionC. TrenchD. All of the aboveD All of the above100.Where do fish live?A. TreesB. HousesC. WaterD. GroundC。
小学上册第二次英语第三单元期中试卷(有答案)
小学上册英语第三单元期中试卷(有答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.My friend’s mom is a _______ (职业). 她在 _______ (地点)工作.2.What is the main diet of a panda?A. FishB. BambooC. MeatD. Fruits答案:B3. A __________ is known for its colorful feathers and loud calls.4.The _____ can be used to navigate at sea.5.The chihuahua is a small ______ dog.6.ers open up in the morning and ______ at night. (有些花在早晨开放，晚上闭合。
) Some fru7.What do we call the person who provides medical care?A. NurseB. DoctorC. TherapistD. Pharmacist答案:B8.The primary structure of proteins is made up of ______.9.What is the main language spoken in the USA?A. FrenchB. EnglishC. SpanishD. German答案: B10.The process of ______ can lead to the discovery of valuable minerals.11.The chemical formula for manganese sulfate is _____.12. A ______ (风景如画) garden can be a great place to relax.13. A ______ (植物的生长周期) informs agricultural practices.14.I share my snacks with my ____.15. A ____ has a hard shell and moves very slowly.16.The first female governor in the U.S. was ________ (娜奈·亨利).17.How many players are there on a soccer team?A. 7B. 9C. 11D. 13答案:C18.The capital of Mali is __________.19.The _____ (cat/dog) is playful.20.I made a game using my toy ____. (玩具名称)21.The rabbit's thumping feet warn others of ______ (危险).22.What is the capital of Iceland?A. ReykjavikB. HelsinkiC. OsloD. Copenhagen答案: A23.My sister is a good ________.24. A ______ (蜥蜴) can be quite colorful and interesting.25.听一听，为下面图片排列顺序，每个句子读三遍。
小学上册第一次英语第2单元期末试卷(含答案)
小学上册英语第2单元期末试卷(含答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.My favorite _____ is a jumping kangaroo.2.What do you call a baby horse?A. ColtB. FoalC. FillyD. Mare答案: B3.We are going to ________ (旅行) next month.4.The _______ can grow in different climates.5.She is ___ (running/jumping) in the park.6.Newton's first law is about inertia and ______.7. A chemical equation shows the _____ of a chemical reaction.8.The _____ (car/bike) is fast.9. A cat's purring is often a sign of ________________ (放松).10.The ______ is a talented sculptor.11.I have a toy _______ that can make bubbles.12.What is 7 + 3?A. 9B. 10C. 11D. 12答案:B.1013. A substance with a pH less than is called an ______.14.The rabbit is ________ (跳) in the garden.15.The ________ (event) inspires change.16.She is my best _____ (朋友).17.The tortoise is known for its hard ________________ (壳).18.The vegetables are _____ (fresh/old) at the market.19.The process of reducing the concentration of a solution is called ______.20.Many _______ can grow from seeds.21.I call my father's sister __________. (姑姑)22.We have a ________ at school.23.The chemical formula for zinc oxide is __________.24.What do you call a baby horse?A. CalfB. FoalC. KidD. Lamb答案: B25.My friend has a wonderful __________ (个性).26.The antelope runs swiftly through the grassy ____.27.The boiling point of a substance is the temperature at which it ______.28.I put my _______ (shoes) by the door.29.We visit the ______ (艺术家工作室) to see creations.30.What is the opposite of "hot"?A. WarmB. ColdC. BoilingD. Freezing答案:B31.The sun is _______ (rising) early today.32.The __________ (密度) of an object determines whether it will float or sink in water.33.My turtle is very ______ (安静).34.The teacher, ______ (老师), gives us projects to work on.35.It is important to ______ (exercise) every day.36.The library is ___ (full/quiet).37.I like to help my ______ (邻居) with their garden. It’s a nice way to m ake new ______ (朋友).38.My cat loves to catch ______ (小虫) on the floor.39.When it rains, I wear a ______ (雨衣).40.I like to write letters to my ________ (朋友). It’s a nice way to stay ________ (联系).41.Planting in different ______ can create a more diverse ecosystem. (在不同的地区种植可以创造一个更具多样性的生态系统。
将面粉过筛的英语作文
将面粉过筛的英语作文Title: The Art of Sifting Flour: A Culinary Essential。
In the realm of culinary arts, few processes are as fundamental and yet as underestimated as the simple act of sifting flour. This seemingly mundane task holds profound significance in the creation of delectable dishes, elevating them from ordinary to extraordinary. In this discourse, we delve into the art of sifting flour, exploring its purpose, technique, and the transformative effects it imparts on culinary endeavors.First and foremost, why sift flour? The primary purpose lies in aerating the flour and breaking up any clumps or impurities that may have formed during storage. This aeration introduces uniformity to the flour, ensuring a consistent texture in the final product. Additionally, sifting serves to incorporate air into the flour, resulting in lighter, fluffier batters and doughs. This isparticularly crucial in baking, where the delicate balanceof ingredients can significantly impact the outcome.Technique plays a pivotal role in achieving optimal results when sifting flour. Begin by selecting a fine-mesh sieve or flour sifter, ensuring it is clean and dry. Measure the desired amount of flour into the sieve, holding it over a bowl or directly onto the work surface. With a gentle, rhythmic motion, shake or tap the sieve, allowing the flour to pass through in a fine, even stream. Take care not to exert too much force, as this can compact the flour and negate the desired aeration effect.For recipes that call for sifted flour, it is essential to adhere to this step to maintain the integrity of the dish. Whether preparing a delicate soufflé, a fluffy sponge cake, or crispy tempura batter, the act of sifting flour contributes to the overall texture and structure of the final product. Moreover, it ensures even distribution of leavening agents such as baking powder or soda, facilitating proper rise and uniform crumb.Beyond its functional benefits, sifting flour embodiesa sense of craftsmanship and attention to detail in the culinary process. It is a ritual that honors tradition and technique, passed down through generations of cooks and bakers. In the hands of a skilled practitioner, the sieve becomes a tool of precision, transforming humble ingredients into culinary masterpieces.Furthermore, the act of sifting flour fosters mindfulness in the kitchen, encouraging us to slow down and connect with the ingredients on a deeper level. As we sift, we engage our senses—the sight of fine particles cascading through the sieve, the sound of gentle tapping, the feel of flour beneath our fingertips. This mindful approach to cooking cultivates an appreciation for the artistry inherent in every dish we create.In conclusion, the importance of sifting flour cannot be overstated in the realm of culinary arts. Beyond its practical benefits, it is a ritual that embodies craftsmanship, tradition, and mindfulness. As we embrace the art of sifting flour, we honor the transformative powerof simple ingredients and elevate our culinary creations to new heights of excellence.。
小学下册第一次英语第三单元期末试卷(含答案)
小学下册英语第三单元期末试卷(含答案)考试时间：80分钟（总分:120）B卷一、综合题(共计100题共100分)1. 选择题：How many inches are in a foot?A. 10B. 12C. 14D. 162. 填空题：I found a ________ (小虫) in the grass and carefully put it back on a ________ (叶子).3. 填空题：I saw a _____ (兔子) in my backyard.4. 听力题：I can ________ (analyze) data effectively.5. 选择题：What do you call the part of the plant that grows underground?A. StemB. LeafC. RootD. Flower6. 填空题：My favorite ______ is . (我最喜欢的______是。
)7. 听力题：We have a ________ (field trip) scheduled.8. 听力题：The book is ___ the table. (on)The party is at my ________.10. 填空题：My __________ (玩具名) reminds me of __________ (事情).11. 填空题：I have a special drawer just for my favorite ________ (玩具名).12. 填空题：A plant’s life cycle includes germination, growth, and ______ (结果).13. 填空题：In the evening, my family has ________ (晚餐) together. We talk about our day and share our ________ (经历).14. 选择题：What do we call the act of moving from one place to another?A. TravelB. WalkC. StayD. Rest答案:A15. 听力题：The kitten is _____ (cute/ugly).16. 填空题：She is an _____ (演员) who stars in movies.17. 听力题：The dog is ___ (sniffing) around the yard.18. 填空题：The ________ was a significant battle in World War I.19. 听力题：The chemical formula for oleic acid is ______.20. 听力题：We have a _____ (比赛) next month.21. 填空题：My pet ______ (猫) loves to chase strings.I have a special place in my heart for my ____.23. 听力题：The capital of Laos is _______.24. 听力题：I want to be a ___. (teacher)25. 填空题：I enjoy drawing ______ during art class.26. 听力题：A __________ is a place where people enjoy nature.27. 选择题：What instrument is used to measure time?A. CompassB. ScaleC. ClockD. Ruler答案: C28. 听力题：I enjoy _____ (painting/drawing).29. 听力题：A saturated solution has reached its ______ point.30. 填空题：I like to ______ (参与) in school projects.31. 听力题：The ______ is the hottest planet in our solar system.32. 填空题：The oak tree is a strong ______ (树种).33. 听力题：My aunt loves to volunteer at the ____ (shelter).34. 听力题：The ____ is a friendly animal that people keep at home.35. 选择题：Which of these is a flying mammal?A. SparrowB. BatC. EagleD. Penguin答案:B36. 选择题：What is the capital of Argentina?A. Buenos AiresB. CórdobaC. MendozaD. Rosario37. 填空题：The ancient Egyptians created ________ for religious purposes.38. 听力题：We have ________ (breakfast) in the morning.39. 填空题：I have a funny ________ (笑话) to tell you.40. 听力填空题：I think it’s essential to take breaks. Takin g time to relax helps recharge our minds and bodies. I like to __________ during my breaks to unwind.41. 填空题：A ________ (园艺活动) engages communities.42. 听力题：The Sun will eventually expand into a ______ star.43. 听力题：A combustion reaction produces ______ and water.44. 听力题：Fermentation is a process that converts sugars into _____.45. 听力题：The teacher is very ________.46. 选择题：What do you call a young rabbit?A. KidB. BunnyC. PupD. Kit答案:D47. 填空题：My favorite sport is _______ (篮球).48. 填空题：I watched a _______ (小鸟) build a nest.49. 填空题：I love to go ______ (滑雪) in the mountains.50. 听力题：Lucy is a ______. She sings very well.51. 选择题：How many colors are there in a rainbow?A. 5B. 6C. 7D. 852. 听力题：Chemical reactions often require an input of _______ to start.53. 选择题：What is the capital city of Germany?A. FrankfurtB. BerlinC. MunichD. Hamburg答案: B54. 听力题：The capital of Hungary is __________.55. 选择题：What fruit is often associated with doctors and health?A. BananaB. AppleC. OrangeD. Grape答案:B56. 听力题：The beaver works hard to build a ____.57. 听力题：I have a _______ (feeling) that today will be great.58. 选择题：What is the name of the fairy tale character who had a red hood?A. CinderellaB. Sleeping BeautyC. Little Red Riding HoodD. Rapunzel答案:C59. 选择题：What do we call the act of cleaning a room?A. TidyingB. OrganizingC. HousekeepingD. Decluttering60. 填空题：The ________ was a major battle fought in 1815.61. 选择题：How many wheels does a bicycle have?A. 2B. 3C. 4D. 562. 选择题：Which sport uses a bat and ball and is played on a diamond-shaped field?A. SoccerB. BasketballC. BaseballD. Tennis答案: C63. 填空题：I think it’s essential to stay _______ (形容词) in tough times. It helps us become stronger.64. 听力题：We are learning about ______ (historical) events.65. 根据文意和图示选单词,并将单词规范地书写在四线格内。
小学上册F卷英语第一单元测验试卷
小学上册英语第一单元测验试卷英语试题一、综合题(本题有50小题，每小题1分，共100分.每小题不选、错误，均不给分)1 The __________ (历史的情感纽带) connect communities.2 My family enjoys __________ together. (聚餐)3 The ice cream is melting ___. (quickly)4 The bison is a strong ____.5 The ocean is ________ (宁静).6 How many sides does a hexagon have?A. FiveB. SixC. SevenD. Eight7 A _______ can help to demonstrate the principles of energy conservation in a system.8 What is a common pet that can swim?A. DogB. CatC. FishD. Rabbit答案:C9 The discovery of ________ has transformed our understanding of biology.10 What do you call a person who speaks two languages?A. MonolingualB. BilingualC. TrilingualD. Polyglot答案：B11 What do we call a baby cat?A. PuppyB. KittenC. CubD. Fawn答案: B12 What is the capital of Colombia?A. BogotaB. MedellinC. CaliD. Cartagena13 What instrument is used to measure time?A. CompassB. ScaleC. ClockD. Ruler答案: C14 The ancient Egyptians are known for their _______.15 The playground is ________.16 The ________ (expedition) is adventurous.17 Which animal is known for its ability to change color?A. ChameleonB. EagleC. SharkD. Penguin答案: A. Chameleon18 What do you call the study of plants?A. BotanyB. ZoologyC. EcologyD. Biology答案: A19 Earth is the ______ planet from the sun.20 What is the most common pet in the world?A. CatB. DogC. FishD. Bird答案:B21 The chemical symbol for iron is _______.22 Most trees lose their _____ (叶子) in autumn.23 I love to eat ________ in the fall.24 How many colors are there in a rainbow?A. FiveB. SixC. SevenD. Eight25 The __________ is beautiful with all the colors of spring. (花园)26 What is the first month of the year?A. FebruaryB. MarchC. JanuaryD. April答案: C27 I enjoy learning about technology. It’s fascinating to see how it changes our lives. I’m particularly interested in __________ because it has so much potential.28 The puppy is ________ (可爱).29 We should _______ (保护) the environment.30 My mom is my caring _______ who loves me dearly.31 What do we call the study of the interactions between living organisms and their environments?A. EcologyB. BiologyC. ZoologyD. Botany答案:A32 The _______ is a negatively charged particle in an atom.33 A base feels slippery and can turn __________ paper blue.34 The _______ of sound can be felt as vibrations in the air.35 Which shape has three sides?A. SquareB. TriangleC. CircleD. Rectangle答案: B36 How do you say "你好" in English?A. HelloB. GoodbyeC. PleaseD. Thank you答案: A37 The ancient Egyptians used ________ (香料) in their rituals.38 Organic chemistry is the study of carbon-containing ______.39 A _______ can be a good project for students.40 An example of potential energy is a _______ at the top of a hill.41 We will go to the ________ tomorrow.42 Earth's atmosphere is made up of nitrogen, oxygen, and other ______.43 The _____ (树) is very tall and provides shade in the summer.44 What fruit is typically associated with keeping the doctor away?A. BananaB. OrangeC. AppleD. Grape答案:C45 The ________ (cloud) looks like a rabbit.46 A ______ (绿色空间) enhances urban living.47 What is 15 ÷ 3?A. 5B. 4C. 6D. 7答案: A48 A ________ (植物遗传学研究) sheds light on evolution.49 The bee is crucial for _______ (生态).50 A ____ has a long tail and loves to swing from branches.51 I _______ (每天) walk to school.52 A __________ is a geological feature that can serve as a natural resource.53 What is the main ingredient in sushi?A. RiceB. PastaC. BreadD. Quinoa答案:A54 I enjoy _____ (solving) puzzles.55 Objects that float in water are ______ than water.56 Which gas is most abundant in the Earth's atmosphere?A. OxygenB. NitrogenC. Carbon DioxideD. Hydrogen答案:B57 The Orion constellation is best seen in ______.58 What is the name of the famous clock tower in London?A. Big BenB. Eiffel TowerC. Leaning TowerD. Burj Khalifa59 In a chemical reaction, the substances that are present before the reaction are called _____.60 What is the capital of Luxembourg?A. Luxembourg CityB. Esch-sur-AlzetteC. DifferdangeD. Dudelange61 What is the capital of Denmark?A. CopenhagenB. AarhusC. OdenseD. Aalborg答案:A62 The __________ is a famous mountain range in Asia.63 The ______ (生长) of plants varies with seasons.64 Many stars are born in stellar _______.65 A ______ is an animal that can live in the desert.66 I enjoy taking part in school ________ (比赛) to improve my skills.67 The first people to settle in Australia were the __________ (土著).68 We have a ______ (丰富的) selection of books.69 My _____ (母亲) is my best friend.70 What is the name of the fairy tale character who had long hair?A. RapunzelB. ArielC. BelleD. Snow White答案: A. Rapunzel71 What do we call a baby dog?A. KittenB. PuppyC. CalfD. Cub72 What do we eat for breakfast?A. PizzaB. CerealC. PastaD. Sandwich73 I have a favorite ________ that I carry around.74 An isotope has a different number of ______.75 My sister is a _____ (演员) who participates in community theater.76 What do we call an animal that eats only plants?A. CarnivoreB. HerbivoreC. OmnivoreD. Insectivore答案:B77 My mom enjoys organizing ____ (family events).78 I want to ________ (dance) at the party.79 What do we call a story that teaches a lesson, often with animals?A. FableB. NovelC. BiographyD. Poem答案:A80 My ______ loves to dance.81 What do you call a person who sells goods?A. CustomerB. VendorC. ManagerD. Buyer答案:B82 I have two _______ (cats) at home.83 I hope it doesn’t __________ during our outdoor event. (下雨)84 The ________ is a gentle creature.85 Friction can slow down a ______.86 The capital of Malta is _______.87 She is a good ________.88 What is the term for a baby kangaroo?A. CubB. JoeyC. PupD. Kit答案: B89 My brother likes to go ____ (rock climbing).90 The ______ (小鼠) scurries in and out of its cozy ______ (洞穴).91 The __________ (历史的教学) guides our learning.92 My hamster loves to ______ (挖掘) tunnels.93 Many people enjoy __________ (户外活动) in their gardens.94 My ________ (玩具名称) is a fun friend.95 A rabbit's teeth never stop ________________ (生长).96 We have a family ___. (tradition)97 I like to ride my ______ (scooter) around the block.98 The _____ (毛巾) is dry.99 The ancient Egyptians used _____ to build their pyramids.100 The blue color of copper sulfate is an example of a _______. (化合物)。
小学下册第13次英语第3单元期末试卷
小学下册英语第3单元期末试卷英语试题一、综合题(本题有50小题，每小题1分，共100分.每小题不选、错误，均不给分)1 The term "volatile" describes a substance that evaporates _______.2 Which shape has three sides?A. SquareB. CircleC. TriangleD. Rectangle答案: C3 I watched a _______ (小黄鹂) build its nest in the tree.4 What color is the sky?A. GreenB. BlueC. YellowD. Red5 A ________ is a large area of land that has been cultivated.6 Substances that speed up chemical reactions without being consumed are called________.7 We should _____ (保护) endangered plant species.8 The __________ helps to break down food in the stomach.9 We will go _____ the museum tomorrow. (to)10 What is the term for a young seal?A. PupB. CalfC. KitD. Fawn答案:A. Pup11 The mosquito bites at _________. (晚上)12 What do you call water when it freezes?a. Iceb. Steamc. Snowd. Rain答案:A13 A balance measures the ______ (mass) of an object.14 What is the opposite of 'soft'?A. HardB. ToughC. FirmD. All of the above答案:D15 My _______ (小狗) loves to play fetch.16 What do you call the first page of a book?A. CoverB. Title pageC. Index答案: B17 A ____(habitat) is where an animal or plant lives.18 Comets are made of ice, dust, and ______.19 I need to _____ (finish/start) my homework.20 What is the main source of energy for the Earth?A. The MoonB. The SunC. StarsD. Wind21 A frog starts its life in water as a __________.22 I love to draw pictures of my favorite ____. (玩具名称)23 My ___ (小兔子) loves to hide in the grass.24 The ancient Greeks laid the foundations for ________ (现代科学).25 My mom says I need to clean up my ____. (玩具)26 collect ________________ (松果). Squirrel27 The process of fermentation converts sugar into ______.28 What do we call a person who writes stories?A. AuthorB. EditorC. ReaderD. Critic29 The trees are ______ in autumn.30 Chemical reactions often involve a change in ______.31 What is the term for a journey made for pleasure?B. TripC. AdventureD. Quest答案:B32 What is the main ingredient in candy?A. SugarB. ChocolateC. FruitD. All of the above答案:D33 The ______ (形状) of leaves varies widely.34 Which gas do we breathe in?A. Carbon DioxideB. OxygenC. NitrogenD. Helium答案：B35 I can combine different ________ (玩具类型) to create something new.36 I love to eat ___. (cake)37 What is the color of a typical firetruck?A. BlueB. YellowC. RedD. Green答案:C38 My aunt's birthday is in ____.39 I enjoy watching _____ buzz around the garden.40 The _______ (The Cold War) led to conflicts around the globe.41 The peacock has beautiful _______ (羽毛).42 A colloid is a mixture where tiny particles are _____ throughout a liquid.43 Which season is coldest?A. SpringB. SummerC. AutumnD. Winter答案:D44 The butterfly is _______ and colorful.45 What do we call the process of writing down thoughts or ideas?A. DrawingB. PaintingC. WritingD. Sculpting答案:C46 The chemical formula for common baking soda is _______.47 What is the name of the longest river in the world?A. AmazonB. NileC. MississippiD. Yangtze48 What is the main ingredient in guacamole?A. AvocadoB. TomatoC. OnionD. Pepper答案: A. Avocado49 What is the name of the holiday celebrated on July 4th in the USA?A. ThanksgivingB. Independence DayC. ChristmasD. Memorial Day答案:B50 I enjoy writing in my journal to express my __________.51 What is the capital of Guatemala?A. Guatemala CityB. AntiguaC. QuetzaltenangoD. Escuintla答案:A52 Which one is not a fruit?A. AppleB. CarrotC. BananaD. Orange答案: B53 World War II began in __________. (1939年)54 I found a ________ (coin) on the ground.55 The __________ can reveal the effects of climate change.56 I often tell my friends, "You can call me ______ anytime!" (我经常告诉我的朋友：“你随时可以叫我！”)57 A __________ is a natural feature of the Earth’s surface.58 My sister has a pet ______ (鹦鹉) that can repeat words.59 I enjoy ______ (与同龄人交流).60 Gravity keeps the planets in ______ around the sun.61 What do you call the device used to take photos?A. CameraB. ProjectorC. PrinterD. Television答案:A62 We see _____ (电影) on Friday.63 We can plant ______ (树) in our schoolyard. They will provide ______ (阴凉).64 My cousin is . (我的表兄弟/表姐妹是。
小学上册第六次英语第4单元综合卷
小学上册英语第4单元综合卷英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.What is the opposite of fast?A. SlowB. QuickC. SwiftD. RapidA2.My favorite way to celebrate a birthday is ______.3.What do you call a piece of furniture to sit on?A. TableB. ChairC. BedD. Couch4. A __________ (科学家社区) supports networking and mentorship for young researchers.5.The __________ was a significant event in the fight for women's suffrage. (选举权运动)6.The capital city of Cuba is __________.7.I enjoy _______ (在公园散步).8.What is the tallest building in the world?A. Burj KhalifaB. Shanghai TowerC. One World Trade CenterD. Taipei 101A9.I have a __________ (玩具名) that looks like a __________ (动物).10.What is the first month of the year?A. JanuaryB. FebruaryC. MarchD. April11.What is the capital city of the USA?A. New YorkB. WashingtonC. Los AngelesD. ChicagoB12.What is the capital of Japan?A. BeijingB. SeoulC. TokyoD. Bangkok13.What do we call a story about someone's life?A. BiographyB. FictionC. NovelD. Article14.What do you call a place where animals are kept?A. ZooB. FarmC. ParkD. Garden15.What is the main meal of the day?A. BreakfastB. LunchC. DinnerD. SnackC16.The chemical symbol for gallium is _______.17.The boiling point of water is higher at ______ altitude.18.What is the capital of Slovenia?A. LjubljanaB. MariborC. CeljeD. KranjA19.The invention of ________ transformed the way people traveled.20.What is the capital of Portugal?A. LisbonB. PortoC. CoimbraD. Braga21.How many colors are in a typical rainbow?A. 5B. 6C. 7D. 8C22. A mixture that has distinct layers is called a _______ mixture.23.I like to drink ______ (牛奶) every morning.24.What is the name of our planet?A. MarsB. EarthC. VenusD. Jupiter25.What is the opposite of 'light'?A. BrightB. HeavyC. SoftD. DarkD26.ts can grow in ______ (水) without soil. Some pla27.I read a ______ before bed. (story)28.I have ________ (three) apples.29._____ (herbaceous) plants die back in winter.30.Birds lay ______ in nests.31.I have a magical ________ (玩具名称).32.Chemical reactions can be exothermic or ______.33.I like to explore the ______ (海滩) and look for beautiful ______ (贝壳).34.I built a tower with my ____. (积木)35.The __________ (历史的交互) fosters connection.36.environmental justice) advocates for equal treatment for all. The ____37.s turn towards the ______. Sunlight38.What do you call the first page of a book?A. CoverB. IntroductionC. Title PageD. ForewordC39.My cousin enjoys __________ (研究) different topics.40.Friction can slow down a ______.41.The chemical formula for sodium acetate is __________.42. A hedgehog rolls into a ______ (球) when scared.43.My pet rabbit has a _______ (可爱) personality.44.The substance that is dissolved in a solution is called a ______.45.What is the shape of a stop sign?A. SquareB. CircleC. TriangleD. Octagon46. A whale is a mammal that lives in the ______.47.Elements can be metals, nonmetals, or _____.48.What is the name of the famous American holiday celebrated on the last Thursday in November?A. Independence DayB. ThanksgivingC. HalloweenD. ChristmasB Thanksgiving49.What do we call a place where you can see many different types of animals?A. FarmB. ZooC. ParkD. Aquarium50.Carbon dioxide is produced when we ______.51.What do we call the parts of a plant that attract insects?A. RootsB. StemsC. FlowersD. LeavesC52.What do you call the process of changing waste into reusable materials?A. RecyclingB. CompostingC. DisposingD. CollectingAets originate from the Oort ______.54.The teacher is _____ (explaining/reading) the lesson.55.I call my mom _____ (妈妈).56.What is the opposite of "up"?A. DownB. LeftC. RightD. Forward57.I love to play board ______ (游戏) with my family. It’s a fun way to spend time together.58.The ________ (传统习俗) are celebrated yearly.59.The park is ______ (near) my house.60.Certain plants are grown for their ______ (纤维).61.Which holiday celebrates the end of the year?A. ChristmasB. New YearC. HalloweenD. ThanksgivingB62. A chemical reaction can occur under _____ conditions.63.She is reading a ___. (magazine)64.What is the capital of Canada?A. TorontoB. OttawaC. VancouverD. Montreal65.The flowers are ______ in the spring. (blooming)66.What do you call a person who teaches students?A. StudentB. TeacherC. PrincipalD. CounselorB67.What do you call the lines on a graph?A. AxesB. CurvesC. PointsD. GridsA68.What do you call the first meal of the day?A. LunchB. DinnerC. BreakfastD. Snack69.We have _____ (two/four) eyes.70.He is a musician, ______ (他是一位音乐家), playing in a band.71.What is the capital of India?A. MumbaiB. DelhiC. KolkataD. ChennaiB72. A fuel is a substance that can be burned to produce _____.73.The __________ (天气预报) predicts rain tomorrow.74.小猴子) loves to eat fruits. The ___75. A _______ is a negatively charged particle found in an atom.76.An endothermic reaction absorbs _____ from its surroundings.77.The element with the symbol Te is __________.78.Which animal can fly?A. FishB. DogC. BirdD. Cat答案:C79.We go to school ______ days a week. (five)80. A __________ is a tool used to measure temperature.81.My aunt has a baby. I call him __________. (小表弟)82.I enjoy drawing _____ (树木) in art class.83.I enjoy playing sports like ______ (足球) and ______ (篮球) with my friends.84.What is the capital of South Korea?A. SeoulB. PyongyangC. BeijingD. TokyoA Seoul85.The __________ was a period of exploration and colonization. (大航海时代)86.What do we call the tool used for measuring temperature?A. ThermometerB. BarometerC. RulerD. Stopwatch87.My cousin loves to __________ (写作) stories and poems.88.The cat is ______ on the sofa. (resting)89.Each year, I participate in a ______ (比赛) at school. Winning feels great, but it’s also fun to ______ (参与).90.What do we call the imaginary line that runs from the North Pole to the South Pole?A. LatitudeB. LongitudeC. EquatorD. MeridianB91.What is the name of the famous explorer who discovered America?A. Marco PoloB. Christopher ColumbusC. Ferdinand MagellanD. Vasco da Gama92.The _______ of sound can be perceived through vibrations in the air.93.Water is made up of two hydrogen atoms and one ________ atom.94.The tree has ______ (many) branches.95.The chemical formula for sulfur trioxide is _____.96.My _______ (兔子) loves fresh greens.97.The _____ (雨伞) is colorful.98.The chemical formula for ammonium sulfate is ______.99. A __________ is a large area of water surrounded by land.100. A cow's moo can signify different ________________ (情绪).。
小学上册第2次英语第3单元期末试卷
小学上册英语第3单元期末试卷英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1. A puppy loves to ______ (跳跃) around.2.The ancient Romans used _____ to entertain their citizens.3.The chemical formula for mercury(II) chloride is ______.4.What is the name of the famous bear in the cartoon?A. PaddingtonB. Winnie the PoohC. YogiD. Baloo答案:B5.What is 25 + 25?A. 40B. 50C. 60D. 706.Which of these is a winter sport?A. SurfingB. SkiingC. RunningD. Cycling答案:B7.He has a red ___. (car)8.How many planets are there in our Solar System?A. 7B. 8C. 9D. 109.I saw a ________ hiding in the flowers.10.How many sides does a cube have?A. 4B. 6C. 8D. 1011. A metamorphic rock forms from the alteration of existing ______.12.Which instrument has keys and is played by pressing them?A. GuitarB. DrumsC. PianoD. Flute答案:C13.The __________ (根系) helps stabilize the soil.14.I found a ________ in my pocket.15.我的朋友喜欢 _______ (活动). 她觉得这很 _______ (形容词)16.What is the primary color that is a mix of blue and yellow?A. GreenB. PurpleC. OrangeD. Brown答案:A17.The ________ was a famous treaty that reshaped national borders.18.What is the name of the fairy tale character with long hair?A. CinderellaB. RapunzelC. Snow WhiteD. Little Red Riding Hood答案:B19.The freezing point of water is _______ degrees Celsius.20.I like to draw ______.21.The ______ (水果) of a plant is often sweet and nutritious.22.The rain is _______ (pouring) outside.23.My favorite vegetable is ______.24.The capital of Georgia is ________ (格鲁吉亚的首都是________).25. A ferret is very ______ (活泼) and curious.26.We have a ______ (丰富的) schedule for school events.27.The process of rusting is an example of a chemical ______.28.The ______ is where we live on Earth.29.I love _____ (toys/books).30.I have a ______ (great) idea for the project.31.I like to explore ______ (新地方) when I travel.32.In a reaction, the rate can be affected by the surface area of the _____.33.What is the name of the famous American actress known for "Breakfast at Tiffany's"?A. Marilyn MonroeB. Audrey HepburnC. Grace KellyD. Elizabeth Taylor答案:B34.I have a special ________ that tells jokes.35.The main gas produced during combustion is __________.36.What do we call a baby goose?A. GoslingB. DucklingC. ChickD. Puppy37.My friend enjoys playing ____ (hockey) with his team.38.The mosquito bites _______ (人) for blood.39.My mom enjoys __________ (与朋友共度时光).40.What is the name of our galaxy?A. Milky WayB. AndromedaC. WhirlpoolD. Sombrero41.The __________ (历史的媒体) shape public opinion.42.What is the name of the longest bone in the human body?A. FemurB. TibiaC. HumerusD. Radius43.What do we call a place where you can see many paintings?A. GalleryB. MuseumC. StudioD. All of the above44.My dad drives a ________ (汽车).45.I like to ___ (eat/cook) pasta.46.I planted a ______ (种子) in the garden, and now it has grown into a small ______ (植物).47. A zebra is known for its black and ______ stripes.48.My sister is skilled at ____.49.Stars are born in _____ regions called nebulae.50.The city of Pompeii was buried by a _____ eruption.51.The __________ (历史的探讨) encourages inquiry.52.What is the main ingredient in bread?A. SugarB. FlourC. RiceD. Salt答案:B53.What do we call the fruit that is yellow and curved?A. AppleB. BananaC. PeachD. Grape54.The stars are out at ___. (night)55.We are going to the ______. (zoo)56.What is the name of the famous landmark in Egypt?A. Great WallB. PyramidsC. StonehengeD. Colosseum57.I have a collection of __________ (玩具名) from __________ (地方).58. A _______ is a chemical process that requires an energy source.59.The library has many _____ (books/chairs).60.My brother enjoys __________ (学习) about new technologies.61.We have a ______ (校园) festival.62.Which of these is a dessert?A. SaladB. CakeC. SoupD. Sandwich答案:B63.We play _____ during recess. (games)64.What is the capital of Turkey?A. IstanbulB. AnkaraC. IzmirD. Bursa答案:B65.The _____ (香草) in my garden smells very good.66.The chemical symbol for rhodium is ______.67.What do you call a large body of fresh water?A. OceanB. SeaC. LakeD. River答案:C68.Which ocean is the largest?A. Atlantic OceanB. Indian OceanC. Arctic OceanD. Pacific Ocean答案:D69.The penguin waddles _______ (走路) on the ice.70.The __________ is a layer of the atmosphere that protects us from meteoroids.71. A __________ is a type of reaction that occurs in the presence of oxygen.72.My favorite fruit is ________ (苹果). I eat it every day because it is healthy. It is red and sweet.73.Which of these is a mode of transportation?A. TableB. CarC. ChairD. Bed74.I have a pet cat. I call her __________. (小猫的名字)75.She wears a _____ (jacket/t-shirt) in winter.76.What is the name of the famous beach destination in Florida?A. Myrtle BeachB. Miami BeachC. Waikiki BeachD. Bondi Beach77.The cake is ________ and sweet.78. A _____ (老鹰) can see very well from high up.79.What is the main ingredient in bread?A. RiceB. FlourC. SugarD. Yeast答案:B80.The rabbit's _______ (尾巴) is fluffy and white.81.What is the currency used in the United States?A. EuroB. YenC. DollarD. Pound答案:C82.The baby is _____ (crying/laughing) in the crib.83.The chemical symbol for manganese is ______.84.What is the main purpose of a compass?A. To measure distanceB. To find directionC. To show timeD. To calculate speed85. A __________ is a place where you can see the stars.86.The parrot's feathers are very _______ (鲜艳).87.Which holiday is celebrated on December 25th?A. ThanksgivingB. HalloweenC. ChristmasD. New Year答案:C88.My dad, ______ (我爸爸), teaches me how to ride a bike.89.The sun is _______ (rising) early today.90. A _______ is a mixture where one substance dissolves in another.91.What do we call a scientist who studies animals?A. BiologistB. ZoologistC. BotanistD. Ecologist答案:B92.My uncle enjoys __________ (钓鱼) in the lake.93.She is ___ her book. (reading)94.The invention of the printing press revolutionized the spread of __________. (知识)95.My pet tortoise is very ______.96.What is the name of the fictional cat who is known for being lazy?A. TomB. GarfieldC. FelixD. Sylvester答案:B97. A crab can walk sideways using its ______ (腿).98.What do we call the body of water that separates Europe and Asia?A. Atlantic OceanB. Mediterranean SeaC. Ural RiverD. Caspian Sea答案:D Caspian Sea99.What do we call the daily news on television?A. MovieB. ShowC. NewsD. Documentary答案:C100. A hamster stores food in its ______ (巢).。
小学上册第一次英语第2单元期末试卷(含答案)
小学上册英语第2单元期末试卷(含答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.My cousin has a __________仓鼠. (可爱的)2.Chinchillas have very soft ________________ (毛发).3. A _______ can help to measure the speed of sound in various conditions.4.My cousin is very __________ (积极向上).5.The sun is ________ (灿烂).6.The _____ (玫瑰) smells sweet and beautiful.7.The cake is ________ with candles.8.How many legs does an insect have?A. SixB. EightC. FourD. Two答案: A9.The _____ (植物生态) is influenced by human activity.10.The diversity of plant life contributes to a healthy ______. (植物生命的多样性有助于健康的生态系统。
)11. A fish lives in _________ (水).12.The ________ (乡村) is peaceful and quiet.13.The first successful face transplant was performed in ________.14.The __________ (历史的反思) provokes thought.15.Did you see the _______ (小 猴) climbing the trees?16.What is the main ingredient in salad?A. BreadB. VegetablesC. MeatD. Cheese答案:B.Vegetables17.The ancient civilizations of Mesopotamia are known for their ________.18. A chemical that can donate electrons is called a ______.19.Horses are very _______ (强壮) and can run fast.20.What is the name of the famous bear from the children’s books?A. Winnie the PoohB. Paddington BearC. Yogi BearD. Baloo答案:A21.I can ___ (play/sing) the guitar.22. A ______ is a small animal that can hop quickly.23.The chemical formula for hydrochloric acid is __________.24.I have a collection of ________.25.An atom consists of protons, neutrons, and ______.26.The owl is _______ (hooting) at night.27.My mother is a _____ (护士) providing care with compassion.28. A bat is a ______ (夜间活动的) animal.29. A chemical change can be identified by changes in color, temperature, or the formation of _____.30.The capital of Syria is _______.31.Which insect produces honey?A. AntB. BeeC. FlyD. Butterfly答案: B32.My brother is in ________ grade.33. A ______ (绿色植物) can improve air quality indoors.34.I have a _____ (跳绳) for exercise.35.He is riding a ________ bike.36.Which month comes after January?A. FebruaryB. MarchC. AprilD. May答案: A37.The chemical symbol for chromium is ______.38.What is the primary color of the sun?A. BlueB. YellowC. RedD. Green答案:B.Yellow39.The particles in a gas are far apart and move ______.40.The antelope hops quickly to escape _______.41.What is the main ingredient in a burrito?A. TortillaB. RiceC. BeansD. All of the above答案:A42.The rabbit is ______ (hopping) through the grass.43.The ______ (鸟) sings sweetly in the morning.44.I enjoy ______ (与朋友一起玩).45.The ________ (环保意识) is growing worldwide.46.The __________ is a major river in North America. (密西西比河)47.The ______ of a daisy is made up of many tiny flowers. (雏菊的花盘由许多小花组成。
牧场英语作文
牧场英语作文Ranch life is a unique experience that offers a blend of hard work natural beauty and a deep connection with animals and the land. Heres an essay that captures the essence of life on a ranch.The Serene Symphony of a RanchThe sun rises early over the horizon casting a warm glow over the vast expanse of the ranch. The air is crisp and fresh carrying the scent of dewsoaked grass and the faint sound of cattle lowing in the distance. This is the beginning of another day on the ranch a symphony of natures rhythm that I have come to cherish.The Morning RitualAs the first light touches the earth the ranch hands and I start our day. We saddle up our horses their neighs echoing through the quiet morning. The routine is the same yet each day brings a new challenge or a delightful surprise. We check the fences ensuring they are secure to keep our herd safe from predators and wandering off.The HerdOur cattle are the heart of the ranch. They graze peacefully their coats glistening in the morning sun. Each animal has its own personality and weve learned to read their moods and needs. Some are more curious approaching us for a scratch behind the ears while others are more reserved preferring to keep their distance.The WorkThe work on a ranch is neverending. Its a dance of maintenance and care. We tend to the needs of the animals ensuring they have enough to eat and drink. We also work on the land planting and harvesting crops that supplement our livestocks diet. The physical labor is demanding but its also incredibly rewarding.The CommunityRanch life is not just about the work but also about the community. We share stories around the campfire laughter and camaraderie filling the air. The ranch is a microcosm of society where everyone has a role and contributes to the collective wellbeing.The LessonsLiving on a ranch has taught me valuable lessons about life. Patience is a virtue here as is resilience. The land doesnt care about our plans it has its own. Weather can turn on a dime and we must adapt quickly. But through it all theres a sense of peace that comes from being in tune with nature.The SunsetAs the day winds down the sun sets in a blaze of colors painting the sky with hues of orange pink and purple. The cattle return to their pens and we retreat to our homes tired but content. The quiet of the evening is a time for reflection on the days work and the beauty of the life we lead.The NightUnder the blanket of stars the ranch sleeps. The only sounds are the occasional rustle of leaves and the distant hoot of an owl. Its a peaceful slumber knowing that another day of harmony with nature awaits us.In conclusion a ranch is more than just a place to work its a way of life. Its about living in harmony with the land and its creatures about understanding the cycles of nature and about finding joy in the simplicity of everyday tasks. Its a life that once experienced is never forgotten.This essay paints a vivid picture of life on a ranch highlighting the daily activities the bond with animals the sense of community and the profound lessons learned from living closely with nature.。
牡丹江“PEP”24年小学4年级L卷英语第6单元期中试卷
牡丹江“PEP”24年小学4年级英语第6单元期中试卷考试时间：80分钟（总分:100）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. 填空题：The ancient Romans excelled in ________ and cultural advancements.2. 填空题：The turtle swims slowly in the _______ (水).3. 选择题：What is the name of the famous river in South America?A. AmazonB. OrinocoC. ParanáD. All of the above4. 填空题：I love to ______ (与朋友交往) at school.5. 听力题：A mixture of two or more substances is called a _____.6. 听力题：A _______ is a chemical reaction that occurs in the kitchen.7. 填空题：The __________ (河口) is where the river meets the sea.8. 听力题：The study of how landforms are created is called ______.9. 填空题：________ (植物生态适应) showcases resilience.What is the name of the ocean that is located between Africa and Australia?A. Atlantic OceanB. Indian OceanC. Pacific OceanD. Arctic Ocean答案:B11. 听力题：The main component of air is _______.12. 填空题：Many plants are ______ (药用) and can help cure illnesses.13. 填空题：We need to _______ (尊重) each other's opinions.14. 填空题：The ______ (鲸鱼) can be seen swimming in the ocean.15. 选择题：What is the name of the fairy tale character who has long hair?A. RapunzelB. ArielC. BelleD. Snow White答案: A16. 选择题：What is the name of the fruit that is green on the outside and red on the inside?A. BananaB. WatermelonC. OrangeD. Peach答案: B17. 填空题：A goldfish can live for several ______ (年) if cared for properly.18. 填空题：My favorite _____ (玩具车) can make sounds and lights.我最喜欢的玩具车可以发出声音和灯光。
广东省珠海市小学四年级英语上册2024-2025学年质量模拟试题及答案
广东省珠海市小学四年级英语上册2024-2025学年质量模拟试题班级：________________ 学号：________________ 姓名：______________一、听力题（每题3分）Question 1:Listen to the recording and choose the correct picture that matches the sentence.•Recording: “I have a new pencil box. It’s blue and white.”Answer: Picture of a blue and white pencil box.Question 2:Listen to the dialogue and answer the question.•Dialogue: “What’s your favorite fruit, Tom?” “My favorite fruit is apples. They’re sweet and healthy.”Question: What’s Tom’s favorite fruit?Answer: Apples.Question 3:Listen to the numbers and write them down in the correct order.•Recording: “Three, seven, two, nine.”Answer: 3, 7, 2, 9Question 4:Listen to the sentence and choose the best response.•Recording: “Would you like to go to the park with me this weekend?”Response Options:A. Yes, I’d love to.B. I don’t like parks.Answer: A. Yes, I’d love to.Question 5:Listen to the short passage and answer the question.•Passage: “I get up at six o’clock every morning. Then I brush my teeth and wash my face. After that, I have breakfast with my family. We usually have eggs, toast, andmilk.”Question: What time does the speaker get up?Answer: Six o’clock.二、单选题（每题3分）Question 1:Which of the following words is a verb?A. BookB. RunC. AppleD. TableAnswer: B. RunWhat’s the plural form of “sheep”?A. SheepsB. SheepesC. SheepsesD. SheepAnswer: D. SheepQuestion 3:Fill in the blank: The cat_______on the roof.A. sitB. sitsC. sittingD. satAnswer: B. sitsQuestion 4:Which preposit ion should be used to complete the sentence: “She is waiting____the bus.”?A. forB. inC. ofD. atAnswer: A. forWhat does “Where is the library?” mean in Chinese?A. 图书馆在哪里？B. 图书馆很大。
安庆“PEP”2024年10版小学四年级第15次英语第4单元真题[含答案]
![安庆“PEP”2024年10版小学四年级第15次英语第4单元真题[含答案]](https://img.taocdn.com/s3/m/39fa037dc4da50e2524de518964bcf84b8d52d5e.png)
安庆“PEP”2024年10版小学四年级英语第4单元真题[含答案]考试时间：100分钟（总分:140）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、听力题：The cat is ______ with a string. (playing)2、填空题：The skunk sprays a ________________ (气味) when threatened.3、听力题：The chemical symbol for niobium is ______.4、What do we call a person who repairs shoes?A. TailorB. CobblerC. SeamstressD. Artisan答案: B5、听力题：The chemical equation for respiration includes glucose and ______.6、What is the main ingredient in a sandwich?A. BreadB. CheeseC. MeatD. All of the above答案:D7、填空题：The __________ (大西洋奴隶贸易) forcibly transported millions of Africans to the Americas.The ________ (种子分散) helps plants spread.9、What do we call the first letter of the alphabet?A. AB. BC. CD. D答案: A10、听力题：A _______ provides food and shelter for animals.11、填空题：I have a cute _____ (布娃娃).12、What do you call a piece of furniture used for sitting?A. TableB. ChairC. ShelfD. Cabinet答案: B13、填空题：I enjoy _______ (写诗) in my notebook.14、听力题：I want to ______ (travel) to new places.15、填空题：I saw a ________ flying in the sky today.16、填空题：The _____ (蜜蜂) plays a vital role in pollination.17、填空题：A butterfly goes through ______ (变形) before it can fly.18、填空题：My cat chases after ______ (小虫子).19、填空题：I often research online to find out more about my ________ (玩具名).My grandma loves to play ____ (board games) with us.21、听力题：The __________ is a region known for its dense forests.22、填空题：He is very _____ (机智) in conversations.23、填空题：The ________ (传统习俗) are celebrated yearly.24、What is the main ingredient in a bagel?A. BreadB. DoughC. WaterD. Flour答案:D25、听力题：A ________ is a large area of land with few trees.26、What is the name of our planet?A. MarsB. EarthC. MoonD. Sun答案:B27、听力题：A _______ is a measure of how much matter is in an object.28、填空题：My toy ________ has big wheels.29、听力题：He is ___ (playing/working) on his project.30、填空题：At school, we learn many subjects like ________ (数学), ________ (英语), and ________ (科学). I especially like ________ (英语) class.31、What is the name of the famous wizarding school in Harry Potter?A. HogwartsB. NarniaC. OzD. Neverland答案:A32、填空题：A _______ (兔子) is soft and cuddly.33、What do you call the process of plants making food?A. PhotosynthesisB. DigestionC. RespirationD. Fermentation答案:A34、听力题：My mom is great at ____ (cooking) different dishes.35、听力题：A solution with a pH less than is considered _______.36、填空题：I can create a magical adventure with my toy ________ (玩具名称).37、填空题：I love to read books about ________.38、听力题：A ____ is known for its hopping abilities.39、听力题：Can you see the ________?40、填空题：My favorite drink is _______ (牛奶).41、What do we call a series of events that occur in a story?A. PlotB. ThemeC. CharacterD. Setting答案: A42、听力题：The ________ (goal) is achievable.43、trial Revolution changed how goods were ________ (生产). 填空题：The Indu44、 Panther Party was founded to combat ________ (种族不平等). 填空题：The Bost45、听力题：I want to fly a _____ (kite/plane).46、The Great Wall of China was built to:A. Keep out animalsB. Protect against invasionsC. Mark boundariesD. Serve as a road答案:B47、What do you call a person who makes bread?A. BakerB. ChefC. CookD. Pastry chef48、选择题：What do we call a person who studies rocks?A. GeologistB. BiologistC. ChemistD. Astronomer49、听力题：A ____ flies from flower to flower collecting nectar.50、What is the name of the famous American author known for his horror stories?A. Edgar Allan PoeB. Mark TwainC. Ernest HemingwayD. F. Scott Fitzgerald答案: A51、选择题：Which animal is known for its speed?A. TortoiseB. CheetahC. SlothD. Elephant52、听力题：The dog is _____ (barking/sleeping) in the yard.Metals are usually _______ conductors of electricity.54、听力题：The chemical formula for phosphoric acid is __________.55、填空题：I love to ______ (练习) playing the guitar.56、What do we call the seasonal migration of animals?A. HibernationB. MigrationC. MatingD. Feeding答案: B57、填空题：In conclusion, spring is a wonderful season full of ______ and joy. I can't wait for it to come every year!58、What do you call a person who studies the stars and planets?A. AstronomerB. AstrophysicistC. CosmologistD. All of the above答案:D59、 Empire fell in ________ (公元476年). 填空题：The Roma60、听力题：I love to ________ new things.61、填空题：I enjoy ________ (看书) at night.62、填空题：My brother is _______ (在看电视).63、填空题：My brother is very ______ at sports. (我哥哥在运动方面很______。
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arXiv:nlin/0606015v1 [nlin.CD] 5 Jun 2006
The Kraichnan flow provides an example of a random dynamical system accessible to an exact analysis. We study the evolution of the infinitesimal separation between two Lagrangian trajectories of the flow. Its long-time asymptotics is reflected in the large deviation regime of the statistics of stretching exponents. Whereas in the flow that is isotropic at small scales the distribution of such multiplicative large deviations is Gaussian, this does not have to be the case in the presence of an anisotropy. We analyze in detail the flow in a two-dimensional periodic square where the anisotropy generally persists at small scales. The calculation of the large deviation rate function of the stretching exponents reduces in this case to the study of the ground state energy of an integrable periodic Schr¨ odinger operator of the Lam´ e type. The underlying integrability permits to explicitly exhibit the non-Gaussianity of the multiplicative large deviations and to analyze the time-scales at which the large deviation regime sets in. In particular, we indicate how the divergence of some of those time scales when the two Lyapunov exponents become close allows a discontinuity of the large deviation rate function in the parameters of the flow. The analysis of the two-dimensional anisotropic flow permits to identify the general scenario for the appearance of multiplicative large deviations together with the restrictions on its applicability.
I.
INTRODUCTION
The Kraichnan random ensemble of velocities [22] has been extensively used to model various phenomena related to turbulent transport both in the inertial interval of scales that develops at high Reynolds numbers and at moderate Reynolds numbers where the viscosity effects play an important role [16]. The passive transport of scalar or vector quantities in a velocity field is governed by the Lagrangian flow describing the evolution of the trajectories of fluid particles. From the mathematical point of view, such flow provides an example of a random dynamical system [1] which in the case of the Kraichnan velocities is described by a stochastic differential equation. For the Kraichnan flows corresponding to moderate Reynolds numbers, the methods borrowed from the theory of random dynamical systems or stochastic differential equations appear to provide important information about the transport properties of the flows. To start with, the values of the Lyapunov exponents of the flow, whose existence is asserted by the multiplicative ergodic theorem, allow to decide whether the flow is chaotic (positive top Lyapunov exponent) or not, leading to different directions of the cascades of passively advected scalars [12]. More detailed information about the transport properties of the flow may be extracted from the knowledge of the fluctuations of the exponential stretching rates around their limiting long-time values equal to the Lyapunov exponents. In the generic case where all the Lyapunov exponents are different, the statistics of the stretching exponents may be expected to exhibit at long but finite times a large deviation regime captured quantitatively by a single function of the vector of the stretching rates. Since the existence of such multiplicative large deviation regime is not assured by general mathematical theorems, see [5] for partial results, it is interesting to have at our disposal models where it may be established and studied in detail. One such example that has been known for some time is the homogeneous isotropic Kraichnan flow. The corresponding stochastic differential equation has been studied in the mathematical literature in the eighties and nineties of the last century. In particular, the Lyapunov exponents have been found in [24] and [4] but the large deviations have been studied only separately for the top stretching exponent or for the sum of them [5]. With the regain of interest of physicists in the Kraichnan model in the mid-nineties, the same stochastic equation resurfaced as the model for the Lagrangian flow at moderate Reynolds numbers with the motivations, the accents and the language proper to the turbulence theory community [10]. In particular, it was realized that many properties of the turbulent transport require more information about the flow than the spectrum of Lyapunov exponents and may be expressed in terms of the rate function of the large deviations of the stretching exponents. Those include the rate of decay of the moments of advected scalar [3] or of growth of those of the magnetic field [11] or, in compressible flows, of the density fluctuations [2], the multifractal properties of long-time density concentrations [6] and the threshold for the onset of the drag reduction in polymer solutions [9]. In the homogeneous and isotropic Kraichan flow, the large deviation regime of the stretching exponents is Gaussian and the corresponding rate function is a quadratic polynomial [2, 3]. Its simple form has permitted to extract analytic answers for many characteristics features of passive advection in such flows [16]. The simplicity of the multiplicative large deviation regime in the homogeneous isotropic Kraichnan flow is due to the decoupling of the dynamics of the stretching exponents from that of the eigen-directions for stretching and contraction [3]. As a result also the exact distribution of the stretching exponenquare: an example of integrable chaos